ErinSink water can contain dangerous contaminants like lead, dirt, rust, chlorine, and even arsenic. A water filtration system is necessary to keep these contaminants out of the water that you drink and cook with.
Not all systems are the same though, and some end up leaving you unprotected from some harmful chemicals in the water. Some models can break easily, causing you to waste money on frequent repairs and replacements. It is important to choose a durable, high quality water filter for home use so that you aren’t wasting money or drinking water that is bad for your health.
Know the facts about the best water filtration systems so you can make an educated purchase that includes the features you need. Price doesn’t always equate to quality. Keep these best-selling and highly-rated systems in mind when you’re considering which under sink water filter will be best for your home. We’ll also share what features you’ll want to look for in models listed on Amazon.
Top 10 Water Filtration Systems for Your Home:
- CuZn UC-200 Under Counter Water Filter
- iSpring RCC7 Under Sink 5-Stage Reverse Osmosis Drinking Filtration System
- Express Water Reverse Osmosis Water Filtration System
- Filtrete Maximum Under Sink Water Filtration System
- APEC Water Systems RO90 Ultimate Series Water Filter System
- Home Master Artesian Undersink Reverse Osmosis Water Filter System
- NU-Aqua 5-Stage Reverse Osmosis Ultimate Purifier
- Home Master HydroPerfection Undersink Reverse Osmosis Water Filter System
- 3M Aqua Pure Under Sink Water Filter System
- APEC Top Tier 5-Stage Reverse Osmosis Drinking Water Filter System
Under the Sink Water Filter Systems – Reviews
CuZn UC-200 Under Counter Water Filter
This ultra high capacity water filter keeps your water fresh and clean. It is a great under counter solution to municipal water. It connects securely to the cold water line of your kitchen sink simply with a fast installation. You only need a wrench to get it all set up.
Product Specifications:
- 8 pounds
- 4.5 x 4.5 x 15 inches
- 5 year Pro-Rated Warranty
- 90 Day Satisfaction Guarantee
Pros:
- 3 Stage Filtration Process
- Bacteriostatic Filtration System means no mold or bacteria
- Fast and simple installation
Cons:
- For municipal water only (can’t be used with private well water)
- Not water softening
The Bottom Line
This compact and easy to install device is really great for homes or residential properties with soft water. The filtration process uses micro sediment membranes to purify water. Bacteriostatic features mean that there won’t be any mold growth or bacteria growth within the system, which saves time and money in the long term.
- Incredible Capacity and Lifespan, Up to 5 Years per Filter; CuZn Backs the UC-200’s Long Lasting Performance With a Comprehensive 5 Year Prorated Performance Warranty, CuZn Will Provide Warranty Replacement if Early Expiration Occurs; the UC-200 Is for Municipal Water Only; Do Not Use With Private Well Water; the UC-200 Is a Water Purifier, the UC-200 Does Not Soften Water; the UC-200 Will Not Resolve Issues Caused by Excessively Hard Water Like Lime Scale Mineral Deposits on Tea Kettles
- Simple to Install; The UC-200 is Designed for Direct Connect to the main Kitchen Sink Cold Water Line; No Drilling Through the Countertop to Mount an Extra Filter Dispenser Faucet Required; How to Install Video Tutorial Instructions Available; If You Have Non-Standard Under Counter Plumbing Connection Issues or Are Unable To Complete Installation, CuZn Technical Support Will Diagnose and Provide All Additional Adapters Required To Complete Your Installation
- 3 Stage Filtration Process Utilizing Micro Sediment Membranes, KDF-55 and Coconut Shell Carbon; the UC-200 Will Not Reduce TDS or PPM Type Meter Readings; if TDS or PPM Removal Is Desired, a Reverse Osmosis Type Filter System is Required; the UC-200 Is Designed To Purify Water Without Reducing the Health Beneficial Mineral Content and as a Result the TDS or PPM Type Meter Readings Will Show the Same Results When Measuring the UC-200’s Filtered Water and the Unfiltered
- Bacteriostatic; Unlike Carbon Only Filters, the UC-200 Is Bacteriostatic and Not Susceptible to Mold or Bacteria Growth; To Test the UC-200’s Filtered Water To Confirm if the Filter Is Still Working, Utilize DPD#1 Chlorine Test Strips and Replace the UC-200 When Chlorine Is Detected in the Filtered Water; Sensitive Test Strips That Test Down 0.25 or 0.5ppm Are Ideal for Earliest Possible Detection of Chlorine; Early Expiration Prior to 5 Years Use Is Covered Under Warranty by CuZn
- CuZn’s Comprehensive Install Insurance Policy Is Included With Purchase of the UC-200 on Amazon; if You Are Unable To Complete Your Installation for Any Reason; Or You Have an Alternative Method for Installing the Filter In Mind Such As Connecting the UC-200 to a Dedicated Filtered Water Only Dispenser Faucet Purchased Separately; Simply Use Amazon Buyer-Seller Messaging To Send Us Your Request and CuZn Tech Support Will Diagnose and Provide the Necessary Alternative Install Kit on the House
iSPring RCC7 Under Sink 5-Stage Reverse Osmosis Drinking Filtration System
This high end whole house water filter brings families of all sizes safe, healthy, good-tasting water. The product is larger, which means more maintenance, but it is able to utilize a more advanced filtration system with its 5-stage reverse osmosis water purifier system.
Product Specifications:
- 3 Pre-Filters (PP sediment, Carbon KDF, and Carbon block)
- Reverse Osmosis Filter
- GAC Final Filter
- 25 pounds
- 14.5 x 5.2 x 17.5 inches
Pros:
- Includes water softener capabilities
- Removes lead, chlorine, giardiasis, bacteria, fluoride, sodium, arsenic, asbestos, calcium, and hormones
- Easy inspection with transparent first stage housing compartment
- Simple installation
- Up to 75 gallons processed per day
Cons:
- Not bacteriostatic
- Heavier, less compact
The Bottom Line
This product is ideal for larger households, as it can handle up to 75 gallons daily. Despite its size, it is easy to inspect as well as clean. Users like that its many filters allow for the removal of up to 99.9% of contaminants. Lead, chlorine, hormones, calcium, and many more can be easily removed from your drinking water with the implementation of this under sink water filter.
- This system is certified to NSF/ANSI 58. High Capacity Reverse Osmosis water filtration for safer, healthier water. This under sink mounted water filter and water softener removes up to 99% of over 1, 000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more.
- Experience clean, safe, good-tasting water every time you turn on the faucet. Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula – even better than most bottled water.
- Easy, do-it-yourself installation, typically in a couple of hours with industry-leading help just a phone call away. Fits under a standard kitchen sink, with all parts included and clear, well-organized instructions and videos. For leak-free installation, simply push tubing ½ inch deep into quick-fitting connectors and lock - no threading pipes needed.
- Premium quality components ensure highest reliability and low maintenance for many years to come. Clear see-through 1st stage housing makes filter inspection a snap.
- Features beautiful European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing. Backed by a 1-year Manufacturer with lifetime support from Atlanta, GA USA.
Express Water Reverse Osmosis Water Filtration System
The Express Water Reverse Osmosis Water Filtration System uses a five filter water purifier system to remove contaminants from the water. Its additional features are a major draw, with a leak stop valve and double sealed filters for maximum efficiency.
Product Specifications:
- One year warranty
- 3 Pre-Filters (sediment, carbon block, and granular activated carbon)
- RO Membrane for 4th stage filtering
- Post Activated Carbon Filter for the 5th stage
- 31 pounds
- 16.2 x 18.8 x 18.1 inches
Pros:
- Removes lead, bacteria, nitrates, chlorine, fluoride, calcium, and arsenic from water
- Environmentally friendly filters
- Double sealed filters for efficiency
- Leak stop valve for efficiency
- Fast flow rate (0.8 GPM)
Cons:
- Only 50 gallons of water a day
- Heavier and less compact
The Bottom Line
The color label system on this water filtration system makes it easy to install and maintain. Many enjoy the 0.8 GPM flow rate and quick connect system for convenience.
- Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system removing up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more.
- Water Purification System: Drink the healthiest water on Earth. All our water filters are specially engineered to work together, producing the safest and best tasting water you’ll ever drink
- Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system
- Quality Guaranteed: Rest easy with our 1-year warranty on all Express Water Reverse Osmosis Water Systems
- Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water
Filtrete Maximum Under Sink Water Filtration System
This compact and easy to install home water filtration system is great for its manageable size and affordable price. It removes 97-99% of 7 different contaminants found in water. The high flow rate is a major draw, being almost double what other under sink water filter systems promise.
Product Specifications:
- 2.2 pounds
- 3.5 x 3.5 x 14 inches
- NSF tested and certified
Pros:
- High flow rate (1.5 GPM)
- Fast and simple installation
- Removes lead, microbial cysts, chlorine, sand, sediment, rust, and oil
- Compact and small
Cons:
- Longer installation (up to 30 minutes)
The Bottom Line
This water filter pitcher system is highly praised among homeowners who needed an affordable systems that didn’t compromise on quality. The high flow rate is perfect for large households, and the compact size is great for small under-sink areas.
- MAXIMUM LEVEL FILTRATION - This system reduces 99% lead, 99% microbial cysts, 97% chlorine taste and odor, plus 0.5 microns of sand, sediment, rust, and soil
- QUICK INSTALLATION - This system installs in less than 30 minutes
- USES EXISTING FAUCET - Filter water right at the sink without having to install an entirely separate faucet
- PROVIDES HIGH FLOW RATE - This system maintains a high flow rate of 1.5 gallons per minute
- SIX MONTH FILTER LIFE - Use each filters for up to six months
APEC Water Systems RO90 Ultimate Series Water Filter System
The five stage filtration system makes this product incredibly effective for over 1000 contaminants. Designer construction of a lead-free faucet makes this a valuable visual asset to the kitchen. With an extended 12 month lifespan, this durable model will save you money on repairs and replacements by lasting longer than other models.
Product Specifications:
- 1st stage filter (polypropylene sediment filter)
- 2nd and 3rd stage filter (carbon block)
- 4th stage filter (FILMTEC TFC reverse osmosis membrane)
- 5th stage filter (Advanced coconut shell refining carbon)
- 25 pounds
- 16 x 5.2 x 17.5 inches
Pros:
- 100% lead free faucet
- FDA Certified JG Food grade tubing for contamination free water
- Removes 99% of contaminants (lead, arsenic, fluoride, chlorine, heavy metals, virus, bacteria, and more)
- Clog-free
- Up to 12 month lifespan
Cons:
- Less affordable model
- Larger and less compact
The Bottom Line
Despite this being a more expensive model, it comes with a high end, sleek faucet and beautiful lead-free construction. With FDA certification, this clog-free filtration system removes 99% of contaminants.
It is perfect for homeowners who want a durable, more expensive model to last a long time and look good.
- Enjoy unlimited ultra-fresh, clean, great tasting water right at home. Save money, time and hassle of buying costly, bottled water
- Designed, engineered and assembled in USA, RO-90 is the most durable system in the industry to guarantee water safety & your health
- Tested and certified by WQA to remove up to 99% of contaminants including arsenic, chlorine, lead, fluoride, heavy metals, virus and 1000+ contaminants
- Large super capacity filters deliver 2X contaminant removing capacity for fewer filter change outs compared to smaller all-in-one filters that clog up quickly
- Comes with 100% lead-free designer faucet, plus JG Food grade tubing to provide safe, contamination-free pure water. The original, top-notch JG Quick Connect fittings for easy and secure leak-seal
Home Master Artesian Undersink Reverse Osmosis Water Filter System
The Home Master System uses seven filtration stages for increased water purity. With added minerals, the water has a great taste in addition to being clean and safe to drink. Filters are easy to change and the device comes with a permeate pump.
Product Specifications:
- Seven filtration stages
- Non-electric permeate pump for efficiency
- Five year limited warranty
- Fast flow RO kit
- 50 GPD
- 14.5 pounds
- 12 x 16 x 20 inches
Pros:
- Long-lasting filters
- Removes 98% of chemicals (chloramines, heavy metals, chlorine, dissolved solids, pharmaceuticals)
- Great tasting water
- Easy and simple filter change
Cons:
- Less affordable model
- Larger and less compact
- Lower flow rate
The Bottom Line
This home water filtration system is efficient with its permeate pump, and uses a durable filter system that is easy to replace. It is perfect for anyone looking for durability. With a lower flow rate, it produces less gallons per day than other models, but makes up for it in energy saving efficiency.
- A better RO system | Home Master Artesian Full Contact’s innovative design solves most common problems associated with cannister and tankless RO systems.
- Mineral Water on Tap | Patented remineralization system adds calcium and magnesium twice during the purification process for reduced storage tank degradation and great tasting, highly pure Mineral Water on Tap.
- Highly pure water | 7-stages of filtration, purification and enhancement remove up to 99% of Chlorine & Chloramines, chemicals, lead, heavy metals, fluoride, microplastics, TDS, and thousands more. BPA and Lead free. 5 Year Limited Warranty.
- NSF Certified Components | meets or exceeds NSF standards for material safety and performance. NSF listed company. Made in USA.
- Reduced Water Waste & TDS Creep | Built in non-electric permeate pump reduces TDS creep and water waste up to 80%, increases water production up to 50%. No electricity required.
NU-Aqua 5-Stage Reverse Osmosis Ultimate Purifier
This model uses 5 stages for increased water purity. Its HydraCoil technology makes for 50% cleaner water due to a higher absorption rate. The combination of cutting edge filtration technology and designer construction makes it a beautiful and effective water filtration system.
Product Specifications:
- HydraCoil technology
- 5 year warranty
- 3 Particle removal stages (Sediment Filter, Pre Carbon Filter, Carbon Filter)
- 2 Water Polishing stages (RO Membrane, Carbon Polishing Filter)
- 20 pounds
- 16.9 x 16.5 x 16.3 inches
Pros:
- 100 GPD flow rate for large households
- 100% lead-free designer faucet
- 50% cleaner water
- Up to 99% rejection rate for over 1000 contaminants (fluoride, chlorine, arsenic, bacteria, lead)
- Easy installation
- Corrective technology for low water pressure
Cons:
- No UV or remineralization and alkaline filter included
The Bottom Line
This model is perfect for large households due to its heightened flow rate. Its easy installation and durable model means you save money from start to finish.
- PREMIUM QUALITY U.S. BRAND: The NU Aqua Platinum Series has gone through rigorous development and testing in our lab to provide consistent great tasting, clean and healthy water on demand. Featuring professional grade high quality quick connect fittings, an elegant NSF 100% lead-free designer faucet to keep your counter top looking great and double o-ring sealed filter housings to provide a guaranteed leak free experience
- HIGH FLOW RATE: At 100GPD this system doubles the output of standard under sink drinking water filtration systems while increasing pollutant rejection rates and providing a taste superior to bottled water this systems 5 stages ensure the highest standard of drinking water quality unparalleled by pitcher filters or countertop purifiers
- FREE BONUS INSTALLATION DVD AND PPM METER: Extremely easy do-it-yourself installation can take less than 1 hour with the provided step by step installation DVD or the easy to follow installation manual. Free Bonus PPM meters allows you test easily test your water quality. Color coded tubing, quick connect fittings and simple design allows the system to fit under standard kitchen sinks
- CUTTING EDGE HYDRACOIL TECHNOLOGY: HydraCoil utilizes a specialty technology manufacturing process for up to 50% cleaner water than comparable systems. Our carbon filters provide a higher absorption rate due to the molecular structure of the pores becoming more permeable which allows even the smallest of particulates to be efficiently removed from your water. This allows the system to provide up to a 99% rejection rate of 1000+ pollutants such as arsenic, chlorine, fluoride, and lead
- INDUSTRY LEADING 5 YEAR WARRANTY: Backed by an industry leading 5 year manufacture warranty and lifetime support the NU Aqua Platinum comes with the industries best support and a satisfaction guarantee
Home Master HydroPerfection Undersink Reverse Osmosis Water Filter System
This efficient under sink water filter uses cutting edge technology to reduce water waste by up to 80%, saving money and energy. While the flow rate is lower, the elaborate filter system includes sediment filters and catalytic carbon filters, which means cleaner water for your family.
Product Specifications:
- 2 pre-filters (sediment and catalytic carbon)
- Artesian post filter
- Composite Membrane
- Flow restriction architecture
- 18.75 pounds
- 5 x 15 x 15 inches
Pros:
- Removes 98% of contaminants (iron, chemicals, heavy metals, sediment)
- Works with well water or city water
- Long lasting filters
- Reduces water waste by 80%
- Increases water production by 50%
- UV filter included
Cons:
- Lower flow rate (50 GPD)
- Higher price than other models
The Bottom Line
This model is perfect for both city water and well water. This means that any household can use the filter. It is long lasting, so it is a great investment for homeowners who expect to be in the residence for a long period of time.
- A Better RO System | Home Master HydroPerfection’s innovative design solves most common problems associated with cannister and tankless RO systems
- EPA Registered | The Home Master is registered under EPA #97952-AZ-1 and has been approved to kill, inactivate or suppress growth of viruses, bacteria, fungi in water purification devices
- Mineral Water on Tap | Patented remineralization system found in our Artesian Full Contact model adds calcium and magnesium twice during the purification process for reduced storage tank degradation and great tasting, highly pure, Mineral Water on Tap
- Highly Pure Water | 9-stages of filtration, purification, UV sterilization and enhancement remove up to 99% of Chlorine & chloramines, chemicals, lead,heavy metals, fluoride, microplastics, TDS and thousands more. BPA and Lead free. 5 Year Limited Warranty
- Reduced Water Waste & TDS Creep | Built-in non-electric permeate pump reduces TDS creep and water waste up to 80%, increases water production up to 50%. No electricity required
3M Aqua Pure Under Sink Water Filter System
This advanced filtration system is easy to install and manage, and doesn’t take up too much space under the sink. While other systems may be large, this one fits perfectly in any under sink area. The SQC design makes changing out cartridges simple. The package comes with a beautiful chrome faucet to easily connect to.
Product Specifications:
- Carbon block filtration
- Sanitary quick change (SQC) cartridge
- Auto shut-off
- 5 pounds
- 15.8 x 10.9 x 3.2 inches
- 10 year limited warranty
Pros:
- Easy installation
- Easy replacement of cartridges
- Compact and small
- Removes contaminants like lead, parasitic protozoan cysts, turbidity, VOCs, MTBEs, and chlorine
Cons:
- Less stages of filtering
- Lower flow rate
The Bottom Line
With its compact but efficient construction, this model is great for smaller kitchen areas that may not fit larger models. Auto shut-off means that you are automatically reminded of when it is time to change cartridges, meaning increased safety and cleanliness.
- CLEANER WATER: Reduces particulate, chlorine taste and odor, lead, turbidity, parasitic protozoan cysts, volatile organic compounds (VOCs) and methyl tert-butyl ether (MTBE)
- CARBON-BLOCK FILTRATION: Advanced dual stage carbon-block filtration process to help provide cleaner, clearer better tasting drinking water
- EASY TO REPLACE: Sanitary Quick Change (SQC) cartridge design helps provide fast and easy cartridge change-outs of the 3M Aqua-Pure Under Sink Replacement Water Filter Cartridge DW80/90 with minimal effort
- AUTO SHUT-OFF: Designed with built-in automatic shut-off meter that automatically shuts off the system after 625 gallons (2,366 liters) as a reminder to change cartridges
- DEDICATED FAUCET: Connects to a polished chrome dedicated drinking water faucet
APEC Top Tier 5-Stage Reverse Osmosis Drinking Water Filter System
This cutting edge reverse osmosis filter system uses its lead-free, clog-free, leak-free construction to effectively clean sink water for drinking. Its USA manufacturing guarantees quality control with companies that can observe the entirety of the manufacturing process.
This product finds a balance between price and quality. It is an affordable, high end model that provides efficient water filtration without an impossible price.
Product Specifications:
- APEC Carbon Blocks
- 5 stage filtration
- 25 pounds
- 16 x 5.2 x 17.5 inches
Pros:
- Removes 99% of contaminants (chlorine, lead, arsenic, fluoride, bacteria, virus, heavy metals)
- Long lasting filters
- 100% lead free designer faucet included
- Leak free quick connect fittings
- Clog-free
- Easy installation
Cons:
- Shorter warranty
- Lower flow rate (50 GPD)
The Bottom Line
The low flow rate means that this product is ideal for households with less individuals. The leak-free, clog-free construction makes it an energy efficient product that can save money wasted on leaks, and time spent on repairs and replacement. Buy this durable product for a long lasting filtration system.
- Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health.
- Only technology to remove up to 99% of contaminants such as chlorine, taste, odor, VOCs, as well as toxic fluoride, arsenic, lead, nitrates, heavy metals and 1000+ contaminants. Max Total Dissolved Solids - 2000 ppm. Feed Water Pressure 40-85 psi
- WQA Certified System. Premium long-lasting filters used to treat tap water, well water. Provide unlimited clean, refreshing crisp tasting water superior to bottled water
- America's No.1 rated water filter brand with 20 years of success guaranteeing trouble free, noise-free system for long lasting, dependable, pure drinking water.
- System comes with 100% lead-free designer faucet, plus Certified JG Food grade tubing and parts to provide safe, contamination-free pure water.Pipe Size: 1/4 inches
Buyers Guide – What to Look for When Buying Under Sink Water Filtration Systems
There are a number of essential factors to look for when choosing a water filtration system for your home. The main concerns should be health, convenience, and efficiency. These can be measured by a number of factors, including:
- Flow Rate
- Filter Type
- Ease of Installation
- Additional features
Flow Rate
The flow rate of a filtration system measures the gallons per day that a system is able to process. For high volume kitchens, a high flow rate is essential. For single-person or small households though, spending money for a higher flow rate may be unnecessary.
The typical range seen in systems is between 50 and 100 gallons per day (or GPD). Choose the GPD that works best for your household’s needs.
Filter Type
There are many different types of filters. The best models that produce the cleanest water often consist of a five stage filtration system, but some can go as high as seven stages. Usually there are pre-filters to rid the water of dirt, rust, and other large particles. Following this, there are filters that take out the finer chemicals like chlorine, lead, and arsenic.
It is common to see pre-filters like the sediment filter, the pre carbon filter, and the carbon filter. After this, many devices put the water through polishing stages with the RO membrane and a carbon polishing filter. These filters remove 98-99% of contaminants. It is important to look for a multi-stage system that removes 98-99% of harmful chemicals.
Ease of Installation
It is important to ensure that the product you buy is simple for you to install. This allows you to save money hiring a specialist to install it for you. One major feature to look for is the Sanitary quick change (SQC) cartridge. This allows for fast replacement of cartridges.
Additional Features
Many filtration systems come with faucets. It is important to look for lead-free construction. You can also find systems that are clog-free so that you don’t have to worry about repairs every few months. If you have low water pressure, you can get a system with corrective technology to fix this issue.
Double sealed filters improve the efficiency of the device by reducing water waste due to leakage. The cutting edge leak stop valve helps with this as well. Getting a system that is efficient and environmentally friendly can help save money on your water bill, and provide you with more clean water per day than other models.
Which is the Best Water Filter System?
There are many reasons to get an under sink water filter system. It improves the cleanliness of the water for increased health benefits, gives water a good taste, and improves energy efficiency in the home.
Prioritize the qualities that are most important for your household. This way, you’ll purchase a filter that keeps you healthy and safe from contaminants without paying money for features you don’t need.
There are many different types of systems available, so be sure that you know all the facts before making your purchase – this is how you’ll save money in the long term!
Last update on 2021-04-13 / Affiliate links / Images from Amazon Product Advertising API
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